学术
摘 要:
研究了（丙烯腈／丁二烯／苯乙烯）共聚物（ABS）与高抗冲聚苯乙烯（HIPS）质量比对ABS／HIPS共混材料力学性能和加工流动性的影响，并着重对质量比分别为80／20和70／30的两种ABS／HIPS共混材料进行了改性研究。结果表明，氯化聚乙烯（PE-C）、（苯乙烯／丁二烯／苯乙烯）嵌段共聚物（SBS）和K树脂对ABS／HIPS共混材料有不同程度的增容增韧改性作用。如采用9份PE-C与3份SBS并用改性的ABS／HIPS（70／30）共混材料的拉伸强度为27．04MPa，冲击强度为32．60kJ／m^2，比改性前约提高2．7倍。转矩流变仪分析表明，PE-C、SBS和K树脂改性的ABS／HIPS共混材料加工流动性和稳定性良好。维卡软化温度测试表明，改性后ABS／HIPS共混材料的耐热性能略有降低，但影响不大。扫描电子显微镜照片清晰反映出改性后ABS与HIPS两相的相容性得到了改善。[著者文摘]
关 键 词:
文章出处:
《工程塑料应用》-2008年36卷2期 -16-20页
栏目信息:
STUDY ON MODIFICATION OF ABS/HIPS COMPOSITES
Dong Zhixian, Zhou Yanhao, Deng Shudong （ Faculty of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China）
Abstract:
The influence of the mass ratio of ABS and HIPS on melt flowing and mechanical properties of ABS/HIPS composites was investigated, The composites （mass ratio of ABS and HIPS was 80/20 and 70/30 respectively） were investigated emphatically. Results showed that the compatibility of ABS and HIPS could be improved to different level with chlorinated polyethylene （PE-C） , styrene-butadiene-styrene copolymer （SBS） and K-resin. The impact strength of ABS/HIPS （ mass ratio was 70/30） was 32.60 kJ/m^2 when 9 phr PE-C and 3 phr SBS were used as modifiers, which was 2.7 times higher than that of the unmodified composite. Its tensile strength was 27.04 MPa. Rheological curves of ABS/HIPS composites with PE-C, SBS or K-resin revealed good melt flowing property and stability. Vicat temperature tests showed that the thermal properties of modified ABS/HIPS composites decreased a little. SEM photographs showed that the compatibility of the ABS/HIPS was improved.[著者文摘]
Key words:
acrylonitrile-butadiene-styrene copolymer, high impact polystyrene, chlorinated polyethylene, modification
更多>>免费文章
cqvip.com